public void cleanup() { /* * remove cleanup of resources * not acquired in AudioTrack approach */ if (!USE_AUDIOTRACK) releasePatch(); cleanupNative(); mAudioConfigs.clear(); if (USE_AUDIOTRACK) return; if (mContext != null) mContext.unregisterReceiver(mA2dpReceiver); mAudioManager.unregisterAudioPortUpdateListener(mAudioPortListener); }